/*
 * jailfsstat README
 *
 * (c) 2002 Pawel Jakub Dawidek <nick@garage.freebsd.pl>
 *
 * $Id: README,v 1.6 2002/10/02 07:16:50 jules Exp $
 *
 */

Jailfsstat is a kernel module for FreeBSD 4.x.
Thanks to this module process in jail can see only file systems mounted
inside of them.

Simple example:

	# mount
	/dev/ad0s3a on / (ufs, local)
	/dev/ad0s3c on /usr (ufs, local)
	/dev/ad0s3d on /tmp (ufs, local)
	/dev/ad0s3e on /jail/bin (ufs, local)
	/dev/ad0s3f on /jail/usr (ufs, local)
	/dev/ad1s1a on /jail (ufs, local)
	procfs on /proc (procfs, local)

	# jail /jail tmp 0 /bin/tcsh
	# mount
	/dev/ad0s3e on /bin (ufs, local)
	/dev/ad0s3f on /usr (ufs, local)
	/dev/ad1s1a on / (ufs, local)

Path to file systems was also cuted.

How to install?

	# tar -zvxf jailfsstat.tgz
	# cd jailfsstat
	# make ; make install ; make load

TODO:
+ For now only getfsstat() is catched, we should catch
  statfs() and fstatfs() as well. [DONE!]
+ In getfsstat() we should take statfs from chroot dir and
  return it with path "/". [DONE!]
+ When calling fstatfs(2) with descryptor from outside of jail
  f_mntonname should be set to "/". [DONE!]

-- 
Pawel Jakub Dawidek <nick@garage.freebsd.pl>